9052421 has 4 divisors (see below), whose sum is σ = 10345632. Its totient is φ = 7759212.

The previous prime is 9052411. The next prime is 9052423. The reversal of 9052421 is 1242509.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1242509 = 61 ⋅20369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9052421 is a prime.

It is a super-2 number, since 2×9052421² = 163892651922482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9052423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646595 + ... + 646608.

It is an arithmetic number, because the mean of its divisors is an integer number (2586408).

Almost surely, 2^9052421 is an apocalyptic number.

It is an amenable number.

9052421 is a deficient number, since it is larger than the sum of its proper divisors (1293211).

9052421 is a wasteful number, since it uses less digits than its factorization.

9052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293210.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 9052421 is about 3008.7241482063. The cubic root of 9052421 is about 208.4114528724.

The spelling of 9052421 in words is "nine million, fifty-two thousand, four hundred twenty-one".